1. The average annual miles driven per vehicle in the U.S. is 11.1 thousand. Suppose that a random sample of 36 vehicles owned by residents of Chicago showed that the average mileage driven last year was 10.8 thousand with a standard deviation of 600 miles. Does this indicate that the average miles driven in Chicago is different than the national average? Use a .05 level of significance.

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d. Find the P value of the sample.
e. Based on your answers, shall we reject or fail to reject the null hypothesis?
1. The average annual miles driven per vehicle in the U.S. is 11.1 thousand. Suppose that a
random sample of 36 vehicles owned by residents of Chicago showed that the average mileage
driven last year was 10.8 thousand with a standard deviation of 600 miles. Does this indicate
that the average miles driven in Chicago is different than the national average? Use a .05 level
of significance.
: a =
; circle one: left-tail, right-tail, two-tail
a. Ho: 11.1
;H: 11.1
b. circle one: Normal or Student's t; z, =
C. z =
d. P-value = 0.9124
e. circle one: Reject, Fail to Reject
&
*
8
9.
e
y
d
f
h
j
k
C
V
Transcribed Image Text:d. Find the P value of the sample. e. Based on your answers, shall we reject or fail to reject the null hypothesis? 1. The average annual miles driven per vehicle in the U.S. is 11.1 thousand. Suppose that a random sample of 36 vehicles owned by residents of Chicago showed that the average mileage driven last year was 10.8 thousand with a standard deviation of 600 miles. Does this indicate that the average miles driven in Chicago is different than the national average? Use a .05 level of significance. : a = ; circle one: left-tail, right-tail, two-tail a. Ho: 11.1 ;H: 11.1 b. circle one: Normal or Student's t; z, = C. z = d. P-value = 0.9124 e. circle one: Reject, Fail to Reject & * 8 9. e y d f h j k C V
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